Effsun 2kw Gen head 480 rpm..

Discussion in 'General Questions' started by bluejay, Sep 15, 2011.

  1. bluejay

    bluejay WindyNation Engineer

    So however the powerjacks are built they dont blow caps...it hit 199 volts in extreme winds today ,most of the time it is capped around 70-ish but doesnt flow like the sun-g does..it builds up output then pulls it back down to 50 and under and does this in all wind ranges.the sun-gs will hold better volts and doesnt ramp as fast,maybe the smaller blades are the only reason???..i took 1 1/2'lb off the tail today and it furls sooner but doesnt turn it much..needs a bigger tail..
    I do have a spare sun-g that has blown caps and have replacement 80v caps of the same output.think its time to testing,,why not???? I can lock it down with 2 sung- 600w and it doesnt go over 30 volts but only puts out 150w max ,,,while I am getting over 1 kw out of the other two..doesnt spin fast enough to ramp up..

    One sun-g would keep it around 35volts but now that I have 3 50v gts i wonder if it would kick in heavy after 50 to keep it under 63v but if the 80v caps are in then how would it act?...Curiosity might break the last sun g but it is worth knowing for me!:D
    If it did work then that would be a sweet home made mppt system!

    It doesnt make noticeable noise till around 80v and this is where you can watch it ramp fast in high winds
  2. bluejay

    bluejay WindyNation Engineer

    Well I will upload a pic tonight,I just added about 7 inches onto the windy tail and it tracks very well. I also reorganized and rewired for a 72 volt battery bank but the 2 500's have a diode to not allow backfeed and also one was placed after the connection of the turbine to my grid safety brake.The batteries are able to always feed the bank of 50v grid ties but if the power goes out the batteries cannot drain into the dump..I love how it is acting in good wind today..the volts dont rise as fast and should have time for the gt's to pull it back down in high winds..Also this should help save the 22v GT's for the five hundreds as if the winds are big enough to grind it to 50 volts it then has the 3000w worth of 50v gts.. I will just need to observe to see how large the bank will need to be to work but also not clamp voltages to extreme..This means I also will have a large number of batteries that are 3/4 full for emergencies..
  3. bluejay

    bluejay WindyNation Engineer

    yes you will notice the back leg is a little bent from a previous non furling crash..There is only one full support leg(shed 40 thick walled black pipe) and one half on this tower but it is inly 20 feet as it is my testing tower.Its ok cause I have already had 60-70 mph gust and more shingles missing to fix when it warms up:mad:.i will finish all towers as $ allow..

    Edited to add** After being out there I did notice that the bent leg has a full pipe up to the top on it and is just hard to see from the angle..you can see the one ubolt near the top in the pic.
  4. TomT

    TomT WindyNation Engineer

    Looking Good. :)
  5. bluejay

    bluejay WindyNation Engineer

    I love this!!!!! Finally got good winds to watch it and it is so smooth and putting out good power 700W while the 2 500's are at 300w TOGETHER!!

    The volts move by each number now instead of jumping 5-6 volts at a time..It also keeps the inverters processing when it dips below 50 for a few seconds helping build amps..

    Ok a ? with knowledge behind it not just that sounds dangerous..

    It is to my understanding that car batteries only produce measurable hydrogen gas when they "boil" from to high of volts going in and having HHO gas produce because the chemical reaction is to slow to keep up with high volts..

    My battery bank is 72 volts and is drained to 50 volts all the time so that means that they will never get overcharged and "boil"..
    If batteries under normal conditions produced alot of gas the water would drop wrecking the battery very quickly.

    How much should I be concerned with this assuming no overcharging?
  6. bluejay

    bluejay WindyNation Engineer

    Tail snapped off,the post on the windy frame finally gave out ..assess the damage and try to updat tomorrow..I am not sure how I am gonna be able to fix it other that making a post and drilling/bolting to the frame side??????????????????????GRRRR
  7. bluejay

    bluejay WindyNation Engineer


    There was hardly any penetration on the weld..I hope this week to weld it to a 1/4 plate the can be bolted thru the bottom of the frame. So it will need to be a 90 angle.. I think I need to design my next frames..

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